The time it takes a person to respond to a command within ACL 3 is about 5 seconds. Examples of commands include: "Hold this" and "Colour this."
Within ACL 3.2, the cause and effect relationship provides an opportunity to measure an experiential response to an internal command to cause an effect on a surface. Start the stop watch after you give the direction. Press stop after the first back and forth motion.
Heart rate is another clinical measure of biological time.
With severe and moderate cognitive disabilities, a lack of physical strength has been blamed for all short attention spans. The paradigm shift offers a different perspective that might remove some barriers that we have been unable to overcome in the past. For example, increasing physical strength may not affect sustained attention time when the cause is reduced mental power. Attention might be sustained longer doing an activity that the person enjoys. Physical exercises are boring to some people.
Experiential response times are probably different than laboratory tests for information processing speed. The latter may be more closely associated with the ACL score, while the former may have a stronger connection to sustained attention time. The clinical significance of the difference is that we do not know how to change information processing speed or ACL scores, but we can change objects to increase sustained attention. Experiential response times might provide clues about whether or not a change in the objects is required in order to sustain attention longer.